Judicial principles and studies
Civil Procedure: Invalidity of Examining a Single Expert in Multi-Expert Expertises
The summary stresses that each expert must be examined individually in multi-expert expertises; otherwise the procedure is invalidated and the expert report cannot serve as a basis for judgment.
Updated: 10 September 2026
Prepared and reviewed by: Ashraf Al-Khawaja
Subject
This summary addresses the requirement to question each expert individually in expertises involving multiple experts, in order to clarify deficiencies and ambiguities in the report and to verify whether all experts were informed and participated in the collective effort to achieve the expertise's purpose.
Summary
Expert evidence functions as a form of proof comparable to testimony; conducting discussions without addressing each expert separately leads to invalidation of that discussion. Consequently, the expert report becomes incomplete and unsuitable to serve as a basis for judgment. Note: This is a general educational summary and not a judicial text or legal advice.
Practical significance
The practical effect is that each expert must be examined independently to avoid nullification of the procedure and to preserve the report's validity as a basis in adjudication.
Sources and references
Verify the official text and latest amendments before relying on this material professionally.